Solve the system.4m = -(n + 3)12m + 3n = -9
A. m = 3, n = 0
B. No solution
C. Infinitely many solutions
D. m = 0, n = -3
Answer: C
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Solve the problem.Hooke's law is applicable to idealized (linear) springs that are not stretched or compressed too far. Consider a nonlinear spring whose restoring force is given by F(x) = 15x - 0.3x3, for |x| ? 8. How much work is done in compressing the spring from its equilibrium position (x = 0) to x = -1.5? Round to two decimal places when appropriate.
A. 16.5 J B. 32.23 J C. 345.6 J D. 172.8 J
Solve the problem.Find a so that the vectors v = i + aj and w = -4i - 2j are orthogonal.
A. 
B. - 
C. 2
D. - 2
The graph of the function f is shown below. Match the function g with the correct graph.g(x) = f(x) - 1
A. 
B. 
C. 
D. 
Solve the system of equations using substitution.
A. x = - 
, y = -4 or 
B. x = -3 , y = 3; x = 4, y = -4
or (-3, 3), (4, -4)
C. x = 3 , y = 
; x = -4, y = - 
or 
, 
D. x = 
, y = 3; x = - 
, y = -4
or 
, 